Question

A student mixes 60.0 mL ethanol (C²H⁶O) into a solution that ultimately has a volume of 300.0 mL. Determine the concentration of this solution in volume percent.

A. 5%
B. 20%
C. 25%
D. 500%

Answer 1

The concentration of the solution in volume percent is 20%.

Step-by-step explanation:

The concentration of a solution can be expressed in volume percent. Volume percent is defined as the volume of the solute divided by the volume of the solution, multiplied by 100%. In this case, the volume of ethanol (solute) is 60.0 mL and the total volume of the solution is 300.0 mL. So, the concentration of the solution in volume percent is:

(60.0 mL / 300.0 mL) × 100% = 20%

Therefore, the correct answer is Option B. 20%.